1 To show visitors around New York is never too much trouble for him.
2 What is needed in this country is stricter control of guns.
3 Finding somewhere to eat at three in the morning is no big problem. (= not a big problem)
4 Whether we (shall) go to the mountains next weekend or not depends on the weather.
5 What has happened is that the telegraph wires have been blown down in the storm.
6 3 and 17 do not make nineteen; they make twenty.
7 To take her into hospital or not was a question.
8 Paying for health care costs a lot of money, especially at this clinic.
9 How many people died in that battle was never discovered.
10 That people spend so much money on their dogs in America astonishes me.
11 To meet a Native American chi
《The USA(第5页)》出自：www.89xue.com网www.89xue.com ef was a great honour.
12 How much money was stolen from the bank is not yet known.
13 Too many cooks means it is not a good idea to have a lot of people doing the same task.
Step 4 Workbook
Wb Lesson 51, Exx. 2 - 3.
For Ex. 2, let the Ss work in pairs. Note that either the -ing form or infinitive can be used in Sentences 1, 3, 8 and 9. Check the answers with the whole class. Put down the English part on Bb.Allow the Ss a few minutes to go over the sentences in Ex. 3 and try to correct the mistakes independently. Then discuss with the whole class. Correct the sentences and make necessary explanation.
Homework
Finish off the Workbook exercises.
探究活动
关于9.11的探究活动：你认为是谁策划了9.11恐怖袭击？
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